Euphrasia exerts its power almost entirely upon the mucous
membranes, especially those of the eye and lids, and of the upper
portion of the respiratory tract, producing a distinct catarrhal
inflammation, partaking of the nature of an influenza, and
characterized by an excessive watery secretion, which is the chief
characteristic of the drug.

Characteristic symptoms.

Head.- (Euphrasia officinalis)

Confusion and bruised pain in the head. (

Gels.)

Dull frontal headache. (Hydras., Kali bi., Nux v.,

Puls.)

Eyes.- (Euphrasia officinalis)

Burning in the eyes, with lachrymation. (Ars.)

Pressure on the eyes, with lachrymation.

Frequent burning biting in the eyes ;

biting water runs from them. (Ars., Merc. cor.)

Itching and burning in the eyes, obliging frequent winking and
wiping the eyes. (Croc., Puls.)

Redness, burning ; swelling of the margins of the lids

. (Merc. cor., Sulph.)

Frequent inclination to blink

. (Croc.)

Lids sensitive and swollen.

Abundant flow of corrosive tears, almost blinding him. (Merc. cor.)

Vision dim, as through a veil, in the evening. (Caust., Merc.,
Petrol.,

Puls.,
Sulph.)

Feeling as though the cornea were covered with much mucus ; it
obscures his vision, and obliges him to frequently close and press the
lids together.

(Croc., Puls.)

Excessive photophobia. (

Acon., Bell., Merc.)

Spots, vesicles, and ulcers of the cornea. (Merc., Sil.)

Sensation as though a hair hung over the eye, and must be wiped
away.

Nose.- (Euphrasia officinalis)

Profuse bland

(Cepa, acrid), fluent coryza(Ars., Merc.), with scalding tears and aversion to light ; worse in the evening and during the night.

Violent irritation to sneeze, without cold or apparent cause.
(Cham.)

Respiratory Organs.- (Euphrasia officinalis)

Catarrhal hoarseness. (

Acon., Carb. v., Hep. s., Phos.)

Irritation of the larynx impelling him to cough, followed by
tensive pressure beneath the sternum.

Cough on rising in the morning, with abundant expectoration of
mucus.

Profuse expectoration of mucus by voluntary hawking.

Difficult deep inspiration even while sitting.

Pressive pain beneath the sternum, with transient sticking here and
there in the chest.